NOVATEUR PUBLICATIONS International Journal of Research Publications in Engineering and Technology [IJRPET] ISSN: 2454-7875 VOLUME 3, ISSUE 3, March-2017
DESIGN ANALYSIS OF LOWER CONTROL ARM OF MAC PHERSON SUSPENSION SYSTEM MR.SWAPNIL S. KHODE Student Dept. of Mechanical, Dr. D. Y. Patil School of Engineering, Lohagaon Pune, India, swapnilskhode@gmail.com PROF. AMOL B. GAIKWAD Dept. of Mechanical, Dr. D. Y. Patil School of Engineering, Lohagaon Pune, India, amol.gaikwad@dypic.in ABSTRACT: The most important component in vehicle is suspension system, which directly affects the safety, performance and noise level. Suspension arm is one of the most important components in the suspension system. It is fitted in various types of the suspensions like Macpherson, wishbone or double wishbone suspensions. The lower control arm is a wishboneshaped metal strut that attaches the wheel to the vehicle's frame. In order to determine the deformation and stress distribution in the current design, the finite element analysis is carried out. The baseline model of the lower control arm is created by using solid modeling software viz. CATIA. ANSYS Workbench is used for Finite Element Analysis This study deals with Finite Element Analysis of the Lower control arm of Mac-pherson suspension system. KEYWORDS: LCA, FEA, Mac-pherson.
surface irregularities .Semi rigid suspensions system shows intermediate characteristics between the other two categories [2].
INTRODUCTION: Vehicle suspension system fulfils various purposes. It provides a vertical obedient element between un-sprung and sprung mass in order to maintain contact between ground and wheel, by reducing the sprung mass motion. It maintain proper attitude of the vehicle during various operating conditions like braking, cornering, accelerating. It also road holding and steering characteristics. Overall performance of suspension system is limits on maximum suspension travel, transmissibility of forces, road holding, minimum weight and cost[1]. There are three different types of suspensions namely: Dependent (Rigid Axle), independent and semi-independent suspensions. In the independent suspension system, there are no linkages between two hubs of same axle and it allows each wheel to move vertically without affecting the opposite wheel. This system has inherent advantages over dependent system such as more space for engine, better roll resistance, lesser un-sprung weight and better resistance to steering vibration. Dependent suspension or rigid axles provide a solid connection between two wheels of the same axle. Therefore motion of one wheel is transferred to the other wheel while travelling along
Fig. 1 Classification of Wheeled Suspension A. PROBLEM DEFINITION: The design of a suspension system is very important. When the vehicle passes on road, it exhibits the impact loads. We experience the sudden motion along with the vehicle; it is very uncomforted to the passengers. The design of a suspension system comes into the picture under this scenario’s. There is absence of balance rod in recent modified Indian light commercial vehicle, which is part of suspension system. Balance rod act as a supportive member for lower control arm of suspension system. Due to absence of balance rod maximum stresses are transferred to lower control arm. B. OBJECTIVE: In order to solve above mentioned problem, main aim of the project is summarize below: To carry out strength evaluation of lower control arm of one of the Indian light commercial vehicle. To carry out reverse engineering on existing model and prepare 3D model using CATIA software.
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